| Paper: | AE-P6.5 | ||
| Session: | Spatial and Multichannel Audio | ||
| Time: | Friday, May 19, 14:00 - 16:00 | ||
| Presentation: | Poster | ||
| Topic: | Audio and Electroacoustics: Spatial and Multichannel Audio | ||
| Title: | DEVELOPMENT OF MICRO-DODECAHEDRAL LOUDSPEAKER FOR MEASURING HEAD-RELATED TRANSFER FUNCTIONS IN THE PROXIMAL REGION | ||
| Authors: | Seiichiro Hosoe, Takanori Nishino, Katsunobu Itou, Kazuya Takeda, Nagoya University, Japan | ||
| Abstract: | This paper describes new equipment for measuring head-related transfer functions (HRTFs) near a listener's head. 3D sounds in headphones are generated by the convolution of sound signals and an HRTF, which is defined as the acoustical transfer function between a point sound source and the entrance to the ear canal. A loudspeaker is usually used for HRTF measurements, and a distance of more than 1 m separates the loudspeaker and the subject. The region within 1 m of the head is called the 'proximal region,' where a small loudspeaker is needed for accurately measuring HRTF, that is, a conventional loudspeaker cannot be used. In our study, a micro-dodecahedral loudspeaker with twelve piezoelectric ceramic devices is used for HRTF measurements at a diameter is 38 mm. Our experiments examined the characteristics of this loudspeaker. From the results, our developed loudspeaker provides similar performance to a point source, and it is very effective for measuring the HRTFs in the proximal region. | ||
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